A new steel-concrete composite structure was proposed which composed of steel box beam, PC beam and PBH Shear connection.
提出了一种新型钢砼组合结构——钢箱砼组合受弯构件，该构件由钢箱梁，钢筋混凝土梁及pbh剪力连接件组合。
The experiment results prove that the stiffness and the ultimate strength of the steel-concrete composite box beam are increased by 54.15 % and 27.72 %, respectively, through using external tendons.
试验证实，体外索钢箱-混凝土组合梁比普通的钢箱-混凝土组合梁的刚度提高54.15%，极限强度提高27.72%。
The composite box beam may make use of the advantage both the steel box beam and the reinforced concrete slab.
组合箱梁结构充分利用了钢箱结构和混凝土结构的优点。
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